516 lines
13 KiB
C
516 lines
13 KiB
C
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/*****************************************************************/
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/** Microsoft LAN Manager **/
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/** Copyright(c) Microsoft Corp., 1988-1991 **/
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/*****************************************************************/
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/**** he - HexEdit a file
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*
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* Wrapper to HexEdit function to allow file (or drive) editting
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*
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* Written: Ken Reneris
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*
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*/
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <ntdddisk.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <process.h>
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#include <windows.h>
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#include "hexedit.h"
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NTSTATUS fncRead(HANDLE, ULONGLONG, PUCHAR, DWORD);
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NTSTATUS fncWrite(HANDLE, ULONGLONG, PUCHAR, DWORD);
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void EditFile (char *name);
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void ReadIni ();
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WORD vAttrList, vAttrTitle, vAttrHigh;
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VOID __cdecl
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main (argc, argv)
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USHORT argc;
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char *argv[];
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{
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char *argument = argv[1];
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if (argc < 2) {
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printf ("he fname\n");
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exit (1);
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}
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ReadIni ();
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if ((strncmp(argv[1], "\\\\.\\", 4)) == 0) {
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char *cp;
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int index;
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// Insure there is a backslash on the DosName being opened.
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for (cp = argv[1], index = 0; *cp; *cp++, index++) {
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// action in for loop
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}
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cp--;
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if (*cp != '\\') {
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// Need to add backslash to name.
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argument = GlobalAlloc (0,index + 4);
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if (!argument) {
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printf("Out of memory\n");
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exit (1);
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}
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for (cp = argv[1], index = 0; argument[index] = *cp; *cp++, index++) {
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// action in for loop
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}
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argument[index] = '\\';
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argument[index + 1] = '\0';
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}
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}
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EditFile (argument);
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}
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void
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EditFile (
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char *name
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)
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{
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FILE_ALIGNMENT_INFORMATION AlignmentInfo;
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PDISK_GEOMETRY_EX DiskGeo;
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ULONGLONG li;
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struct HexEditParm ei;
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USHORT rc, rc1, i, l;
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PWSTR WideName;
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OBJECT_ATTRIBUTES oa;
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NTSTATUS status;
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UNICODE_STRING NtDriveName;
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ANSI_STRING NtDriveNameAnsi;
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IO_STATUS_BLOCK status_block;
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UCHAR GeoBuf[ 8*1024];
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UCHAR Root[12];
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//
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// Try to open & edit as regular filename
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//
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memset ((PUCHAR) &ei, 0, sizeof (ei));
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ei.ename = name;
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ei.flag = FHE_VERIFYONCE | FHE_SAVESCRN | FHE_JUMP;
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ei.read = fncRead;
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ei.write = fncWrite;
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ei.ioalign = 1;
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ei.Console = INVALID_HANDLE_VALUE;
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ei.AttrNorm = vAttrList;
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ei.AttrHigh = vAttrTitle;
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ei.AttrReverse = vAttrHigh;
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ei.handle = CreateFile (
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name,
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GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL,
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OPEN_EXISTING,
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0,
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NULL );
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if (ei.handle == INVALID_HANDLE_VALUE) {
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// Try for just read access
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ei.handle = CreateFile (
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name,
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GENERIC_READ,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL,
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OPEN_EXISTING,
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0,
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NULL );
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}
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if (ei.handle != INVALID_HANDLE_VALUE) {
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ULONG High = 0;
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ei.totlen = 0;
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ei.totlen = SetFilePointer (ei.handle, 0, &High, FILE_END);
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ei.totlen |= ((ULONGLONG)High) << 32;
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HexEdit (&ei);
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return;
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}
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rc = (USHORT)GetLastError ();
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//
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// Try expanding the name from dosname to ntname.
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// Since regular name failed, assume a sector edit
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//
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l = strlen(name)+1;
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WideName = GlobalAlloc (0,l * sizeof(WCHAR));
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if (!WideName) {
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printf("Out of memory\n");
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exit(1);
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}
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ZeroMemory(WideName, l*sizeof(WCHAR));
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for(i=0; i < l; i++)
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WideName[i] = name[i];
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// OK, now get the corresponding NT name
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rc1 = RtlDosPathNameToNtPathName_U (
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WideName,
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&NtDriveName,
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NULL,
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NULL );
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if (!rc1) {
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printf ("Open error %d\n", rc);
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exit (rc);
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}
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// If the NT drive name has a trailing backslash, remove it.
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l = NtDriveName.Length/sizeof(WCHAR);
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if( NtDriveName.Buffer[l-1] == '\\' ) {
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NtDriveName.Buffer[l-1] = 0;
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NtDriveName.Length -= sizeof(WCHAR);
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}
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InitializeObjectAttributes(
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&oa,
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&NtDriveName,
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OBJ_CASE_INSENSITIVE,
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0,
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0 );
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status = NtOpenFile(
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&ei.handle,
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SYNCHRONIZE | FILE_READ_DATA | FILE_WRITE_DATA,
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&oa,
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&status_block,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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FILE_SYNCHRONOUS_IO_ALERT );
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if (!NT_SUCCESS(status)) {
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// try for just read access
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status = NtOpenFile(
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&ei.handle,
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SYNCHRONIZE | FILE_READ_DATA,
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&oa,
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&status_block,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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FILE_SYNCHRONOUS_IO_ALERT );
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}
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if (!NT_SUCCESS(status)) {
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NtDriveName.Length = strlen(name) * sizeof(WCHAR);
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NtDriveName.Buffer = WideName;
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InitializeObjectAttributes(
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&oa,
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&NtDriveName,
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OBJ_CASE_INSENSITIVE,
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0,
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0 );
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status = NtOpenFile(
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&ei.handle,
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SYNCHRONIZE | FILE_READ_DATA | FILE_WRITE_DATA,
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&oa,
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&status_block,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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FILE_SYNCHRONOUS_IO_ALERT );
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if (!NT_SUCCESS(status)) {
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// try for just read access
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status = NtOpenFile(
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&ei.handle,
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SYNCHRONIZE | FILE_READ_DATA,
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&oa,
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&status_block,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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FILE_SYNCHRONOUS_IO_ALERT );
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}
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}
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RtlUnicodeStringToAnsiString (&NtDriveNameAnsi, &NtDriveName, TRUE);
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ei.ename = NtDriveNameAnsi.Buffer;
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if (!NT_SUCCESS(status)) {
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printf ("%s open error %lx\n", ei.ename, status);
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exit (status);
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}
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/*
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NtQueryInformationFile(
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ei.handle,
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&status_block,
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&AlignmentInfo,
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sizeof( AlignmentInfo ),
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FileAlignmentInformation );
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ei.ioalign = AlignmentInfo.AlignmentRequirement;
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*/
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ei.ioalign = 0;
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ei.totlen = 0;
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if (NtDriveNameAnsi.Buffer[ NtDriveNameAnsi.Length - 1] == ':') {
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sprintf( Root, "%c:\\", NtDriveNameAnsi.Buffer[ NtDriveNameAnsi.Length - 2]);
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//
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// For non-cdrom drive letter opens, we need to use
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// get partition info, not get disk info, for the partition size.
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//
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if (DRIVE_CDROM != GetDriveType( Root)) {
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PPARTITION_INFORMATION Part = (PVOID)GeoBuf;
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status = NtDeviceIoControlFile(
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ei.handle,
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0,
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NULL,
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NULL,
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&status_block,
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IOCTL_DISK_GET_PARTITION_INFO,
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NULL,
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0,
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GeoBuf,
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sizeof( GeoBuf) );
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if (NT_SUCCESS(status)) {
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ei.totlen = Part->PartitionLength.QuadPart;
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}
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}
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}
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//
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// Get sectorsize and, if we haven't got it already, disk/partition size
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//
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status = NtDeviceIoControlFile( ei.handle,
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0,
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NULL,
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NULL,
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&status_block,
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IOCTL_DISK_GET_DRIVE_GEOMETRY_EX,
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NULL,
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0,
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GeoBuf,
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sizeof( GeoBuf) );
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if (NT_SUCCESS(status)) {
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DiskGeo = (PVOID)GeoBuf;
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if (ei.ioalign < DiskGeo->Geometry.BytesPerSector) {
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ei.ioalign = DiskGeo->Geometry.BytesPerSector;
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}
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if (0 == ei.totlen) {
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ei.totlen = DiskGeo->DiskSize.QuadPart;
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}
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}
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else {
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//
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// The EX call failed, try the old one. GPT discs seem
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// to fail the EX call.
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//
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PDISK_GEOMETRY OldGeo;
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status = NtDeviceIoControlFile( ei.handle,
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0,
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NULL,
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NULL,
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&status_block,
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IOCTL_DISK_GET_DRIVE_GEOMETRY,
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NULL,
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0,
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GeoBuf,
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sizeof( GeoBuf) );
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if (NT_SUCCESS(status)) {
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OldGeo = (PVOID)GeoBuf;
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if (ei.ioalign < OldGeo->BytesPerSector) {
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ei.ioalign = OldGeo->BytesPerSector;
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}
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if (0 == ei.totlen) {
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ei.totlen = OldGeo->Cylinders.QuadPart * OldGeo->BytesPerSector *
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OldGeo->SectorsPerTrack * OldGeo->TracksPerCylinder;
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}
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}
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}
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//
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// Last resort for partition/disk size.
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//
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if (0 == ei.totlen) {
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ULONG High = 0;
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if (ei.ioalign < 0x200) {
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ei.ioalign = 0x200;
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}
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ei.totlen = 0;
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ei.totlen = SetFilePointer (ei.handle, 0, &High, FILE_END);
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ei.totlen |= ((ULONGLONG)High) << 32;
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}
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//
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// If a filesystem is mounted, we need to enable extended
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// DASD io in order to read the whole volume. Ignore result,
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// not all FSs support it.
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//
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status = NtDeviceIoControlFile(
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ei.handle,
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0,
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NULL,
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NULL,
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&status_block,
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FSCTL_ALLOW_EXTENDED_DASD_IO,
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NULL,
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0,
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NULL,
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0);
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ei.flag = FHE_VERIFYALL | FHE_PROMPTSEC | FHE_SAVESCRN | FHE_JUMP;
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HexEdit (&ei);
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}
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NTSTATUS fncRead (HANDLE h, ULONGLONG loc, PUCHAR data, DWORD len)
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{
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DWORD l, br;
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ULONG High = (ULONG)(loc >> 32);
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l = SetFilePointer (h, (ULONG)loc, &High, FILE_BEGIN);
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if (l == -1)
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return GetLastError();
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if (!ReadFile (h, data, len, &br, NULL))
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return GetLastError();
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return (br != len ? ERROR_READ_FAULT : 0);
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|
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}
|
||
|
|
|
||
|
|
|
||
|
|
NTSTATUS fncWrite (HANDLE h, ULONGLONG loc, PUCHAR data, DWORD len)
|
||
|
|
{
|
||
|
|
DWORD l, bw;
|
||
|
|
ULONG High = (ULONG)(loc >> 32);
|
||
|
|
|
||
|
|
l = SetFilePointer (h, (ULONG)loc, &High, FILE_BEGIN);
|
||
|
|
if (l == -1)
|
||
|
|
return GetLastError();
|
||
|
|
|
||
|
|
if (!WriteFile (h, data, len, &bw, NULL))
|
||
|
|
return GetLastError();
|
||
|
|
|
||
|
|
return (bw != len ? ERROR_WRITE_FAULT : 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/*** xtoi - Hex to int
|
||
|
|
*
|
||
|
|
* Entry:
|
||
|
|
* pt - pointer to hex number
|
||
|
|
*
|
||
|
|
* Return:
|
||
|
|
* value of hex number
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
unsigned xtoi (pt)
|
||
|
|
char *pt;
|
||
|
|
{
|
||
|
|
unsigned u;
|
||
|
|
char c;
|
||
|
|
|
||
|
|
u = 0;
|
||
|
|
while (c = *(pt++)) {
|
||
|
|
if (c >= 'a' && c <= 'f')
|
||
|
|
c -= 'a' - 'A';
|
||
|
|
if ((c >= '0' && c <= '9') || (c >= 'A' && c <= 'F'))
|
||
|
|
u = u << 4 | c - (c >= 'A' ? 'A'-10 : '0');
|
||
|
|
}
|
||
|
|
return (u);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void
|
||
|
|
ReadIni ()
|
||
|
|
{
|
||
|
|
static char Delim[] = " :=;\t\r\n";
|
||
|
|
FILE *fp;
|
||
|
|
char *env, *verb, *value;
|
||
|
|
char s [200];
|
||
|
|
long l;
|
||
|
|
|
||
|
|
|
||
|
|
env = getenv ("INIT");
|
||
|
|
if (env == NULL)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if ((strlen(env) + sizeof ("\\TOOLS.INI") + 1) > sizeof(s))
|
||
|
|
return;
|
||
|
|
|
||
|
|
strcpy (s, env);
|
||
|
|
strcat (s, "\\TOOLS.INI"); // just use list ini section
|
||
|
|
fp = fopen (s, "r");
|
||
|
|
if (fp == NULL)
|
||
|
|
return;
|
||
|
|
|
||
|
|
while (fgets (s, 200, fp) != NULL) {
|
||
|
|
if (s[0] != '[')
|
||
|
|
continue;
|
||
|
|
_strupr (s);
|
||
|
|
if (strstr (s, "LIST") == NULL)
|
||
|
|
continue;
|
||
|
|
/*
|
||
|
|
* ini file found w/ "list" keyword. Now read it.
|
||
|
|
*/
|
||
|
|
while (fgets (s, 200, fp) != NULL) {
|
||
|
|
if (s[0] == '[')
|
||
|
|
break;
|
||
|
|
verb = strtok (s, Delim);
|
||
|
|
value = strtok (NULL, Delim);
|
||
|
|
if (verb == NULL)
|
||
|
|
continue;
|
||
|
|
if (value == NULL)
|
||
|
|
value = "";
|
||
|
|
|
||
|
|
_strupr (verb);
|
||
|
|
if (strcmp (verb, "LCOLOR") == 0) vAttrList = (WORD)xtoi(value);
|
||
|
|
else if (strcmp (verb, "TCOLOR") == 0) vAttrTitle= (WORD)xtoi(value);
|
||
|
|
else if (strcmp (verb, "HCOLOR") == 0) vAttrHigh = (WORD)xtoi(value);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
fclose (fp);
|
||
|
|
}
|